As I mentioned on the main page of the guide, I'm going to cover the entirety of each campaign of the aforementioned major DLC of the game. This means collecting each Key (if applicable) and Prize Bubble (including those in Cooperative Challenge areas) as well as Completing and Acing every possible level. Following my guide should help you score various Acing and Prize Bubble Trophies, effectively earning you 100% completion for each campaign.
If you're going to want to collect everything, you'll need to do at least a little bit of backtracking. I'll make note of when this is necessary and what to use when and where. In general, I split my recordings for each level into two videos, the first for Acing and collecting all (or at least most) of the currently accessible single-player Goodies/Prize Bubbles and the second for collecting newly accessible Prize Bubbles and for completing any existing Cooperative Challenge areas. If a level is linked to any Challenges, they'll be nested under the level where you can find the requisite Key.
▼ DLC 1: METAL GEAR SOLID®
▼ Act 4: The Level Factory
● VR Survival Challenge
Also, though I did not include audio commentary for this guide, I did include textual commentary that can be found below each of the corresponding embedded YouTube video players.